Block IP Range

Hi, I have windows 2003 Server, Standard Edition. Is there anyway I can block a particular IP range from accessing anything. There is a particular person who keeps coming to all the stuff my server hosts, and causes trouble, I would like to ban him from everything, every port, and every program.

you can do it, without buying any extra software, just use ROUTE command.

assume your subnet is 192.168.100.0/255.255.255.0, the IPs to be banned is 172.16.16.1-16/255.255.255.0, a reserved IP on your LAN is 192.168.100.250/255.255.255.0 (an valid address but not in use), then run the followings in a command prompt window:

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I think my answer covers the issue better than the other solutions of adding an asymetric route.
In addition, the author said he'd like to keep him from using programs, with active directory you can limit exe's that users can use. However windows XP or 2003 are the required OS's, meaning 2000
cannot restrict programs from running. Again the users have to be using xp or 2003 for this to work. An alternitive is using ZoneAlarm, it can "ban" programs from running.
-rich